High precision NA4912 Needle Roller Bearing for machinery

Description of Needle Roller Bearing:

Drawn cup needle roller bearings with open ends and with closed end are needle roller bearings with a very small radial section height. They comprise thin-walled, drawn cup outer rings and needle roller and cage assemblies which together form a complete unit

These bearings allow the design of particularly compact and easy to fit bearing arrangements with high radial load carrying capacity. In order to support axial forces, they can also be combined with axial needle roller bearings AXW, series AXW, see dimension table,

The majority of the bearings are of a single row design and do not have a lubrication hole. Double row designs have a lubrication hole and the suffix ZW.

Needle Roller  Bearing NA4912  types:

Radial needle roller and cage assemblies,